1 | /* |
1 | /* |
2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
3 | * |
3 | * |
4 | * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
4 | * Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
5 | * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team |
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6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
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7 | * |
5 | * |
8 | * Deliantra is free software: you can redistribute it and/or modify |
6 | * Deliantra is free software: you can redistribute it and/or modify it under |
9 | * it under the terms of the GNU General Public License as published by |
7 | * the terms of the Affero GNU General Public License as published by the |
10 | * the Free Software Foundation, either version 3 of the License, or |
8 | * Free Software Foundation, either version 3 of the License, or (at your |
11 | * (at your option) any later version. |
9 | * option) any later version. |
12 | * |
10 | * |
13 | * This program is distributed in the hope that it will be useful, |
11 | * This program is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | * GNU General Public License for more details. |
14 | * GNU General Public License for more details. |
17 | * |
15 | * |
18 | * You should have received a copy of the GNU General Public License |
16 | * You should have received a copy of the Affero GNU General Public License |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
17 | * and the GNU General Public License along with this program. If not, see |
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18 | * <http://www.gnu.org/licenses/>. |
20 | * |
19 | * |
21 | * The authors can be reached via e-mail to <support@deliantra.net> |
20 | * The authors can be reached via e-mail to <support@deliantra.net> |
22 | */ |
21 | */ |
23 | |
22 | |
24 | #ifndef CLIENT_H |
23 | #ifndef CLIENT_H |
25 | #define CLIENT_H |
24 | #define CLIENT_H |
26 | |
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27 | #include <deque> |
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28 | #include <bitset> |
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29 | #include <tr1/unordered_set> |
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30 | |
25 | |
31 | #if HAVE_TCP_INFO |
26 | #if HAVE_TCP_INFO |
32 | # include <netinet/tcp.h> |
27 | # include <netinet/tcp.h> |
33 | #else |
28 | #else |
34 | struct tcp_info { |
29 | struct tcp_info { |
… | |
… | |
63 | int tcpi_advmss; |
58 | int tcpi_advmss; |
64 | int tcpi_reordering; |
59 | int tcpi_reordering; |
65 | }; |
60 | }; |
66 | #endif |
61 | #endif |
67 | |
62 | |
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63 | //+GPL |
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64 | |
68 | // (possibly) max. number of objects "per page" in the ground container |
65 | // (possibly) max. number of objects "per page" in the ground container |
69 | #define FLOORBOX_PAGESIZE 50 |
66 | #define FLOORBOX_PAGESIZE 50 |
70 | |
67 | |
71 | struct MapCell |
68 | struct MapCell |
72 | { |
69 | { |
… | |
… | |
92 | struct statsinfo |
89 | struct statsinfo |
93 | { |
90 | { |
94 | char *range, *title; |
91 | char *range, *title; |
95 | }; |
92 | }; |
96 | |
93 | |
97 | /* This contains basic information on the socket structure. status is its |
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98 | * current state. we set up our on buffers for sending/receiving, so we can |
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99 | * handle some higher level functions. fd is the actual file descriptor we |
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100 | * are using. |
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101 | */ |
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102 | |
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103 | /* Only one map mode can actually be used, so lets make it a switch |
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104 | * instead of having a bunch of different fields that needed to |
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105 | * get toggled. |
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106 | */ |
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107 | enum { Map0Cmd = 0, Map1Cmd = 1, Map1aCmd = 2 }; |
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108 | |
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109 | // states the socket can be in |
94 | // states the socket can be in |
110 | enum { |
95 | enum { |
111 | ST_DEAD, // socket is dead |
96 | ST_DEAD, // socket is dead |
112 | ST_SETUP, // initial handshake / setup / login |
97 | ST_SETUP, // initial handshake / setup / login |
113 | ST_PLAYING, // logged in an playing |
98 | ST_PLAYING, // logged in an playing |
… | |
… | |
116 | ST_GET_PARTY_PASSWORD, |
101 | ST_GET_PARTY_PASSWORD, |
117 | }; |
102 | }; |
118 | |
103 | |
119 | // a handler for a specific type of packet |
104 | // a handler for a specific type of packet |
120 | enum { |
105 | enum { |
121 | PF_PLAYER = 0x01, // must have valid player / will by synchronised |
106 | PF_PLAYER = 0x01, // must have valid player / will by synchronised |
122 | PF_PLAYING = 0x02, // must be in playing state |
107 | PF_PLAYING = 0x02, // must be in playing state |
123 | PF_COMMAND0 = 0x04, // command starts at offset 0 |
108 | PF_COMMAND = 0x04, // is a user command |
124 | PF_COMMAND6 = 0x08, // command starts at offset 6 |
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125 | }; |
109 | }; |
126 | |
110 | |
127 | // face type.s bit 0 means "has meta info prepended" |
111 | // face types. bit 0 means "has meta info prepended" |
128 | enum { |
112 | enum { |
129 | FT_FACE = 0 * 2 + 0, // faces (images) |
113 | FT_IMAGE = 0 * 2 + 0, // images |
130 | FT_MUSIC = 1 * 2 + 1, // background music |
114 | FT_MUSIC = 1 * 2 + 1, // background music |
131 | FT_SOUND = 2 * 2 + 1, // effects |
115 | FT_SOUND = 2 * 2 + 1, // effects |
132 | FT_RSRC = 3 * 2 + 0, // generic data files |
116 | FT_RSRC = 3 * 2 + 0, // generic data files |
133 | FT_NUM, |
117 | FT_NUM, |
134 | }; |
118 | }; |
… | |
… | |
146 | const packet_type *handler; |
130 | const packet_type *handler; |
147 | char *data; |
131 | char *data; |
148 | int datalen; |
132 | int datalen; |
149 | }; |
133 | }; |
150 | |
134 | |
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135 | //-GPL |
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136 | |
151 | /* how many times we are allowed to give the wrong password before being kicked. */ |
137 | /* how many times we are allowed to give the wrong password before being kicked. */ |
152 | #define MAX_PASSWORD_FAILURES 5 |
138 | #define MAX_PASSWORD_FAILURES 5 |
153 | |
139 | |
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140 | /* This contains basic information on the socket connection. status is its |
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141 | * current state. we set up our on buffers for sending/receiving, so we can |
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142 | * handle some higher level functions. fd is the actual file descriptor we |
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143 | * are using. |
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144 | */ |
154 | INTERFACE_CLASS (client) // should become player when newsocket is a baseclass of player |
145 | INTERFACE_CLASS (client) // should become player when newsocket is a baseclass of player |
155 | struct client : zero_initialised, attachable |
146 | struct client : zero_initialised, attachable |
156 | { |
147 | { |
157 | int ACC (RW, fd); |
148 | int ACC (RW, fd); |
158 | unsigned int inbuf_len; // number of bytes valid in inbuf |
149 | unsigned int inbuf_len; // number of bytes valid in inbuf |
159 | statsinfo stats; |
150 | statsinfo stats; |
160 | object_vector_index ACC (RO, active); |
151 | object_vector_index ACC (RO, active); |
161 | player_ptr ACC (RO, pl); |
152 | player_ptr ACC (RO, pl); |
162 | |
153 | |
163 | char *ACC (RW, host); /* Which host it is connected from (ip address) */ |
154 | char *ACC (RW, host); /* Which host it is connected from (ip:port) */ |
164 | uint8 ACC (RW, state); /* Input state of the player (name, password, etc */ |
155 | uint8 ACC (RW, state); /* Input state of the player (name, password, etc */ |
165 | |
156 | |
166 | sint8 ACC (RW, last_level); /* Last level we sent to client */ |
157 | sint8 ACC (RW, last_level); /* Last level we sent to client */ |
167 | uint16 ACC (RW, last_flags); /* fire/run on flags for last tick */ |
158 | uint16 ACC (RW, last_flags); /* fire/run on flags for last tick */ |
168 | float ACC (RW, last_weapon_sp); /* if diff than weapon_sp, update client */ |
159 | float ACC (RW, last_weapon_sp); /* if diff than weapon_sp, update client */ |
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172 | uint32 ACC (RW, last_path_repelled); /* Last spell repelled sent to client */ |
163 | uint32 ACC (RW, last_path_repelled); /* Last spell repelled sent to client */ |
173 | uint32 ACC (RW, last_path_denied); /* Last spell denied sent to client */ |
164 | uint32 ACC (RW, last_path_denied); /* Last spell denied sent to client */ |
174 | living ACC (RO, last_stats); /* Last stats as sent to client */ |
165 | living ACC (RO, last_stats); /* Last stats as sent to client */ |
175 | float ACC (RW, last_speed); /* Last speed as sent to client */ |
166 | float ACC (RW, last_speed); /* Last speed as sent to client */ |
176 | sint16 ACC (RW, last_resist[NROFATTACKS]);/* last resist values sent to client */ |
167 | sint16 ACC (RW, last_resist[NROFATTACKS]);/* last resist values sent to client */ |
177 | sint64 ACC (RW, last_skill_exp[NUM_SKILLS]);/* shadow register. if != exp. obj update client */ |
168 | sint64 ACC (RW, last_skill_exp[CS_NUM_SKILLS]);/* shadow register. if != exp. obj update client */ |
178 | |
169 | |
179 | bool ACC (RW, afk); /* player is afk */ |
170 | bool ACC (RW, afk); /* player is afk */ |
180 | bool ACC (RW, sent_scroll); |
171 | bool ACC (RW, sent_scroll); |
181 | bool ACC (RW, sound); /* does the client want sound */ |
172 | bool ACC (RW, sound); /* does the client want sound */ |
182 | bool ACC (RW, newmapcmd); /* Send newmap command when entering new map SMACFIGGEN */ |
173 | bool ACC (RW, bumpmsg); /* give message when bumping into walls */ |
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174 | |
183 | bool ACC (RW, plugincmd); // extend the protocol through a plug-in */ |
175 | bool ACC (RW, plugincmd); // extend the protocol through a plug-in */ |
184 | bool ACC (RW, mapinfocmd); // return map info and send map change info |
176 | bool ACC (RW, mapinfocmd); // return map info and send map change info |
185 | uint8_t ACC (RW, extcmd); // call into extensions/plugins |
177 | uint8 ACC (RW, extcmd); // call into extensions/plugins |
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178 | bool ACC (RW, need_delinv0); /* If true, we need to delinv 0 before sending new floorbox */ |
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179 | |
186 | bool ACC (RW, update_look); /* If true, we need to send the look window */ |
180 | bool ACC (RW, update_look); /* If true, we need to send the look window */ |
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181 | bool ACC (RW, update_spells); // If true, we need to esrv_update_spells |
187 | bool ACC (RW, has_readable_type); /* If true client accept additional text information */ |
182 | bool ACC (RW, has_readable_type); /* If true client accept additional text information */ |
188 | /* used to arrange text in books, scrolls, or scripted dialogs */ |
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189 | bool ACC (RW, monitor_spells); /* Client wishes to be informed when their spell list changes */ |
183 | uint8 ACC (RW, monitor_spells); /* Client wishes to be informed when their spell list changes */ |
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184 | |
190 | bool ACC (RW, smoothing); // deliantra-style smoothing |
185 | bool ACC (RW, smoothing); // deliantra-style smoothing |
191 | |
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192 | bool ACC (RW, force_newmap); // force a newmap before next map update |
186 | bool ACC (RW, force_newmap); // force a newmap before next map update |
193 | uint32 ACC (RW, supported_readables); /* each bit is a readable supported by client */ |
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194 | uint32 ACC (RW, cs_version), ACC (RW, sc_version); /* versions of the client */ |
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195 | uint16 ACC (RW, look_position); /* start of drawing of look window */ |
187 | uint16 ACC (RW, look_position); /* start of drawing of look window */ |
196 | uint16 ACC (RW, mss); // likely tcp maximum segment size |
188 | uint16 ACC (RW, mss); // likely tcp maximum segment size |
197 | uint8 ACC (RW, mapmode); /* Type of map commands the client wants. */ |
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198 | uint8 ACC (RW, mapx), ACC (RW, mapy); /* How large a map the client wants */ |
189 | uint8 ACC (RW, mapx), ACC (RW, mapy); /* How large a map the client wants */ |
199 | uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */ |
190 | uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */ |
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191 | uint8 ACC (RW, tileset); // selected tileset |
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192 | uint8 ACC (RW, ws_version); // websocket protocol versio for framing |
200 | |
193 | |
201 | maptile_ptr ACC (RW, current_map); // CF+ last/current player map |
194 | maptile_ptr ACC (RW, current_map); // last/current player map |
202 | region_ptr ACC (RW, current_region); // CF+ last/current player region |
195 | region_ptr ACC (RW, current_region); // last/current player region |
203 | int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position |
196 | int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position |
204 | shstr ACC (RW, version); // CF+ client name/version |
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205 | uint8 ACC (RW, faceset); // CF+ selected faceset |
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206 | |
197 | |
207 | tstamp ACC (RW, last_send); // last data send on socket. |
198 | tstamp ACC (RW, last_send); // last data send on socket. |
208 | |
199 | |
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200 | float ACC (RW, socket_timeout); /* after how many seconds of no ack do we declare dead */ |
209 | int ACC (RW, rate_avail); // current rate balance |
201 | int ACC (RW, rate_avail); // current rate balance |
210 | int ACC (RW, max_rate); // max. # of bytes to send per tick |
202 | int ACC (RW, max_rate); // max. # of bytes to send per tick |
211 | faceidx ACC (RW, scrub_idx); // which face to send next |
203 | faceidx ACC (RW, scrub_idx); // which face to send next |
212 | int ACC (RW, bg_scrub); // how many ticks till the next background face send |
204 | int ACC (RW, bg_scrub); // how many ticks till the next background face send |
213 | |
205 | |
214 | struct tcp_info tcpi; |
206 | struct tcp_info tcpi; |
215 | tstamp next_rate_adjust; |
207 | tstamp next_rate_adjust; |
216 | |
208 | |
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209 | // websocket frame buffer |
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210 | uint8 ws_inbuf_type; // current frame type |
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211 | uint8 *ws_inbuf; |
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212 | uint32 ws_inbuf_len; |
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213 | uint32 ws_inbuf_alloc; |
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214 | |
217 | unordered_vector<char *> mapinfo_queue; |
215 | unordered_vector<char *> mapinfo_queue; |
218 | void mapinfo_queue_clear (); |
216 | void mapinfo_queue_clear (); |
219 | void mapinfo_queue_run (); |
217 | void mapinfo_queue_run (); |
220 | bool mapinfo_try (char *buf); |
218 | bool mapinfo_try (char *buf); |
221 | |
219 | |
222 | struct ixsend { |
220 | struct ixsend { |
223 | int16_t pri; // unused |
221 | sint16 pri; // higher means faces are sent earlier, default 0 |
224 | faceidx idx; |
222 | faceidx idx; |
225 | uint32_t ofs; // if != 0, need to send remaining bytes of partial_face |
223 | uint32 ofs; // if != 0, need to send remaining bytes of partial_face |
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224 | uint8 *data; |
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225 | SV *data_sv; |
226 | }; |
226 | }; |
227 | std::vector<ixsend, slice_allocator<ixsend> > ixface; // which faces to send to the client using ix |
227 | std::vector<ixsend, slice_allocator<ixsend> > ixface; // which faces to send to the client using ix |
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228 | MTH void ix_send (faceidx idx, sint16 pri, SV *data_sv); // keeps a copy of data_sv |
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229 | void ix_pop (); // pops topmost ixsend |
228 | |
230 | |
229 | std::vector<faceidx, slice_allocator<faceidx> > fxface; // which faces to send using fx |
231 | std::vector<faceidx, slice_allocator<faceidx> > fxface; // which faces to send using fx |
230 | MTH void flush_fx (); // send fx if required |
232 | MTH void flush_fx (); // send fx if required |
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233 | |
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234 | MTH void invalidate_face (faceidx idx); |
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235 | MTH void invalidate_all_faces (); |
231 | |
236 | |
232 | void do_destroy (); |
237 | void do_destroy (); |
233 | void gather_callbacks (AV *&callbacks, event_type event) const; |
238 | void gather_callbacks (AV *&callbacks, event_type event) const; |
234 | |
239 | |
235 | iow socket_ev; void socket_cb (iow &w, int revents); |
240 | iow socket_ev; void socket_cb (iow &w, int revents); |
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243 | std::bitset<FT_NUM> fx_want; |
248 | std::bitset<FT_NUM> fx_want; |
244 | |
249 | |
245 | // if we get an incomplete packet, this is used to hold the data. |
250 | // if we get an incomplete packet, this is used to hold the data. |
246 | // we add 2 byte for the header, one for the trailing 0 byte |
251 | // we add 2 byte for the header, one for the trailing 0 byte |
247 | uint8 inbuf[MAXSOCKBUF + 2 + 1]; |
252 | uint8 inbuf[MAXSOCKBUF + 2 + 1]; |
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253 | void inbuf_handle (); |
248 | |
254 | |
249 | enum { MSG_BUF_SIZE = 80, MSG_BUF_COUNT = 10 }; |
255 | enum { MSG_BUF_SIZE = 80, MSG_BUF_COUNT = 10 }; |
250 | struct msg_buf |
256 | struct msg_buf |
251 | { |
257 | { |
252 | tick_t expire; |
258 | tick_t expire; |
253 | int len; |
259 | int len; |
254 | int count; |
260 | int count; |
255 | char msg[MSG_BUF_SIZE]; |
261 | char msg[MSG_BUF_SIZE]; |
256 | } msgbuf[MSG_BUF_COUNT]; |
262 | } msgbuf[MSG_BUF_COUNT]; |
257 | |
263 | |
258 | MTH bool msg_suppressed (const char *msg); |
264 | MTH bool msg_suppressed (const_utf8_string msg); |
259 | |
265 | |
260 | /* The following is the setup for a ring buffer for storing output |
266 | /* The following is the setup for a ring buffer for storing output |
261 | * data that the OS can't handle right away. |
267 | * data that the OS can't handle right away. |
262 | * TODO: this member is enourmously large - optimise? |
268 | * TODO: this member is enourmously large - optimise? |
263 | */ |
269 | */ |
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283 | void skip_packet (int len); // we have processed the packet, skip it |
289 | void skip_packet (int len); // we have processed the packet, skip it |
284 | |
290 | |
285 | MTH void flush (); |
291 | MTH void flush (); |
286 | MTH void write_outputbuffer (); |
292 | MTH void write_outputbuffer (); |
287 | MTH int outputbuffer_len () const { return outputbuffer.len; } |
293 | MTH int outputbuffer_len () const { return outputbuffer.len; } |
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294 | void send_raw (void *buf_, int len); |
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295 | |
288 | void send (void *buf_, int len); |
296 | void send (void *buf_, int len); |
289 | |
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290 | void send_packet (const char *buf); |
297 | void send_packet (const_octet_string buf); |
291 | void send_packet (const char *buf, int len); |
298 | void send_packet (const_octet_string buf, int len); |
292 | void send_packet_printf (const char *format, ...); |
299 | void send_packet_printf (const_utf8_string format, ...) ecb_attribute ((format (printf, 2, 3))); |
293 | void send_packet (packet &sl); |
300 | void send_packet (packet &sl); |
294 | |
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295 | void send_drawinfo (const char *msg, int flags = NDI_BLACK); |
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296 | |
301 | |
297 | MTH void send_face (faceidx facenum, int pri = 0); |
302 | MTH void send_face (faceidx facenum, int pri = 0); |
298 | MTH void send_faces (object *ob); |
303 | MTH void send_faces (object *ob); |
299 | MTH void send_animation (short anim_num); |
304 | MTH void send_animation (short anim_num); |
300 | void send_msg (int color, const char *type, const char *msg); |
305 | void send_msg (int color, const_utf8_string type, const_utf8_string msg); |
301 | |
306 | |
302 | MTH void play_sound (faceidx sound, int dx = 0, int dy = 0); |
307 | MTH void play_sound (faceidx sound, int dx = 0, int dy = 0); |
303 | // called when something under the player changes |
308 | // called when something under the player changes |
304 | MTH void floorbox_update () { update_look = 1; } |
309 | MTH void floorbox_update () { update_look = 1; } |
305 | // called when the player has been moved |
310 | // called when the player has been moved |
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308 | MTH void tick (); // called every server tick to do housekeeping etc. |
313 | MTH void tick (); // called every server tick to do housekeeping etc. |
309 | |
314 | |
310 | MTH static client *create (int fd, const char *peername); |
315 | MTH static client *create (int fd, const char *peername); |
311 | MTH static void clock (); |
316 | MTH static void clock (); |
312 | MTH static void flush_sockets (); |
317 | MTH static void flush_sockets (); |
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318 | |
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319 | MTH void run (); // start handshake after init |
313 | |
320 | |
314 | protected: |
321 | protected: |
315 | client (int fd, const char *from_ip); |
322 | client (int fd, const char *from_ip); |
316 | ~client (); |
323 | ~client (); |
317 | }; |
324 | }; |
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346 | ACC (RW, tcpi.tcpi_snd_cwnd); |
353 | ACC (RW, tcpi.tcpi_snd_cwnd); |
347 | ACC (RW, tcpi.tcpi_advmss); |
354 | ACC (RW, tcpi.tcpi_advmss); |
348 | ACC (RW, tcpi.tcpi_reordering); |
355 | ACC (RW, tcpi.tcpi_reordering); |
349 | #endif |
356 | #endif |
350 | |
357 | |
351 | #define CLIENT_SUPPORT_READABLES(__sockPtr,__type)\ |
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352 | ( ((__type)>0) &&\ |
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353 | ((__sockPtr)->has_readable_type) && \ |
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354 | ((__sockPtr)->supported_readables & (1<<(__type))) ) |
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355 | |
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356 | #define FACE_TYPES 1 |
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357 | #define PNG_FACE_INDEX 0 |
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358 | |
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359 | #define VERSION_CS 1023 /* version >= 1023 understand setup cmd */ |
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360 | #define VERSION_SC 1026 |
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361 | //#define VERSION_SC 1027 // requestinfo image_info and image_sums, makes extending faces on the fly impossible |
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362 | #define VERSION_INFO "Deliantra Server" |
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363 | |
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364 | typedef object_vector<client, &client::active> sockvec; |
358 | typedef object_vector<client, &client::active> sockvec; |
365 | |
359 | |
366 | extern sockvec clients; |
360 | extern sockvec clients; |
367 | |
361 | |
368 | #define for_all_clients(var) \ |
362 | #define for_all_clients(var) \ |
369 | for (int _i = 0; _i < clients.size (); ++_i) \ |
363 | for (int _i = 0; _i < clients.size (); ++_i) \ |
370 | statementvar (client *, var, clients [_i]) |
364 | statementvar (client *, var, clients [_i]) |
371 | |
365 | |
372 | // returns true when the message needs special (read: perl) treatment |
366 | // returns true when the message needs special (read: perl) treatment |
373 | static inline bool |
367 | static inline bool |
374 | msg_is_special (const char *msg, bool nl_special = true) |
368 | msg_is_special (const_any_string msg, bool nl_special = true) |
375 | { |
369 | { |
376 | return msg [strcspn (msg, nl_special ? "<&\n" : "<&")]; |
370 | return msg [strcspn (msg, nl_special ? "<&\n" : "<&")]; |
377 | } |
371 | } |
378 | |
372 | |
379 | #endif |
373 | #endif |
380 | |
374 | |